Storage-battery construction



"C. c. CARPENTER.

STORAGE BATTERY CONSTRUCTION. APPLlCATlON FILED SEPT-20, 1919.

jl sga m Patented June 7, 1921.

WITNESS: INVENTOR.

Campbel G aqvenier 2 it Z BY A TTORNE Y.

. cram c.- cn n, or meet.

. warren I FALLS, new YORK, essrsnon To U. s. nren'r ore, or nmonne rs, new roan, a, oonronarron or new nseeme;

To aZZ it my ooncem Be it known that l, CAMPBELL. C. CARP PENTER, a citizen of the United States, residing at Niagara Falls, in the county of Niagara and State of New York, have invented new and, useful Improvements in Storage TBattery Construction, of which the following is a specification. i 1 t The present invention relates to storage battery construction Storage batteries are-commonly made up of juxtaposed cells, said cells being inde pendent of one another except for their outside connections, each cell being provided, with filling and ventilating apertures and with corresponding means for preventing the ingress of foreign material. 1

An object of the present invention isv to provide ajsimplified storage battery construction. I A further object is to provide a storage battery construction wherein a plurality of juxtaposed cells may be filled with electrolyte to a predetermined level though only one of said cells is provided with the customar-y filling aperture.

Other ob ects will appear as the descrip-= tion proceeds. I The drawing is a sectional view illustrating one embodiment of the present invention.

The numeral 1 indicates a storage battery.

casing having intermediate walls 2, 2, which provide three cells which are indicated by .thenumerals 3, l and 5. The walls, 2, 2 do not.

extend to the top of the ba%Qry,there being spaces 6, 6 left between the cover 7 and the top of said walls 2, 2, The sealed to the casing 1. -M y one fillin 'ap erture for the battery need be provid according to the present invention; Said aperture is indicated by the numeral 8. The cells 3, 4 and 5 will, be provided. with the usual plates, separators and connecting posts. Said plates, separator s and posts. have not been illustrated herein, inasmuch as they form no part of the present invention, and their illustration does not a d 'in a complete understanding oft-he resent invention. On the under side of t e cover 7 is a collar 9 surrounding'theaperture 8. On the upper side of the cover 7 is a collar 10 which may be eccentric with the a erture 8, whereby to provide a thickene portion through which extends the vent 11.,

sro on-nnrrnnr consrnucrron cover 7 is tightly s ecification of Letters Patent. Patented June "t, 31921 Application filed Sept mber 20, 1919. Serial No. 325,173.

The normal level of the electrolyte in the below the/line representing the normal level of the electrolyte. It will be obvious'that 1f the apertures ,13, 13 are placed only slightly-below the normal level of the" electrolyte, a slight drop belowsaid level will reducethe electrolyte level to a point below said apertures, whereby there will be no short-c rcuiting between compartments through said apertures. Such reduction in the acid level below normal frequently oc-' curs in practice and does no harm. The

walls 2, 2 extend above the normal level of the electrolyte.

Theapertures 13, 13 provide communicatlon between the cells of the battery whereby to permit the passage of electrolyte. The

cross sectional areasof the apertures 13, 13 should be relat1vely small, whereby to avoid reducing. the resistance between the cells to such a low value that the voltage at the terminals of the battery will be sufficient to senda substantial discharging current through the interior of the battery.

It will be evident that when the operator desires to add liquid tothe battery, he will pour said liquid through filling aperture 81 Liquid will pass through the apertures 13,-

13 into the cells 3 and 5. Airwill escape from cells 3 and 5 above the electrolyte through the spaces 6, '6, thence through the vent 11 to the outside.

The casing 1 has been illustrated as being of integral construction.- This integral construction is.not necessary, howevera Three separate cells may be placed in juxtaposition, the walls sea-led together and provided with apertures whereby communication may be had between the cells below the electrolyte level,

lhe battery, according to the present invention, is cheap to manufacture and has fewer parts to break than in the ordinary construction. The fact that only one filling aperture is needed for the complete battery is of importanceparticularly when the battery is to be put in the hands of the ordinary motorist to whom the ordinary attention re uired for a battery is a great bother.

me embodiment of the present invention has been described in detail. Many modi- 'fications will occurito those skilled in the art. It is intended in this patent to cover all such modifications that come within the scope of the invention as defined by the appended claims.

What I claim as new and desire to secure by letters'patent of the United States is.-. v

1. A storage battery having a plurality of compartmentsjsaid compartments being separated by walls having apertures to permit the passage of electrolyte, said apertures being suficiently small to provide a suflicientresistance, through the interior of said battery to prevent the voltage at the terminals of said battery from sending a substantial I discharging current through the interior of in said bat cry, and another relatively small aperture below said level.

3. A storage battery having a plurallty below the normal level of said battery.

J 4. A storage battery comprising a plu-. rality of cells, the electrolyte being incommunication throughout said battery, insulating walls being provided to separate said cells, said walls being suflicient in extent to provide an electrical resistance through the electrolyte of the battery to prevent a substantial discharge through said electrolyte.

In witness whereof I have hereunto subscribed my name. I 0 i BELL C. CARPENTER.

-01? compartments separated by walls, each of said separating walls having an aperture the electrolyte in 

